Home / 2,138,399.80-3,207,601.22-519,171.73

Finding the Fourth Proportional to 2,138,399.80, 3,207,601.22 and 519,171.73

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Solution

The fourth proportional to 2,138,399.80, 3,207,601.22 and 519,171.73 is: 778,757.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,399.80 : 3,207,601.22 = 519,171.73 : x
  2. Step 2: Convert to fraction form
    2,138,399.80/3,207,601.22 = 519,171.73/x
  3. Step 3: Cross multiply
    2,138,399.80x = 3,207,601.22 × 519,171.73
  4. Step 4: Simplify right side
    2,138,399.80x = 1,665,295,863,922.65
  5. Step 5: Solve for x
    x = 1,665,295,863,922.65/2,138,399.80
  6. Step 6: Final answer
    x = 778,757.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.